A trustee or a beneficiary of a unitrust may petition the court to:
1. Select an income distribution percentage different from 3 to 5 percent.
2. Provide for a distribution of net income as would be determined if the trust were not a unitrust, in excess of the unitrust distribution if such distribution is necessary to preserve a tax benefit.
3. Average the value of the trust assets over a period other than 3 years.
4. Reconvert a unitrust to a trust.